Secondly klt and reversible integer - to - integer wavelet transform for image compression are discussed , and a method of nearlossless compression of multispectral images is given , which combines klt and integer wavelet transform together . the spatial redundancy in the images is removed by klt and the inter - band redundancy is removed by the integer - to - integer wavelet transform 接着详细研究了k - l变换原理和整型小波的构造方法，编程实现了结合k - l变换和整数小波变换的多光谱图像压缩算法，该算法将k - l变换用于去除多光谱遥感图像的谱间冗余，在谱内则使用整型小波方法去除空间冗余。
Multispectral data for bathymetry is often performed in relatively clear shallow waters , up to now , no one use multispectral data for bathymetry in estuary waters of yellow river , where the highest sediment concentration in the world has been observed . in another part of this thesis , multispectral data acquired by landsat - 5 tm and in situ data are used for bathymetry in estuarine waters of yellow river . statistical models based on one band and two bands of tm respectively are developed 利用两期水深的比对可以揭示黄河水下三角洲的冲淤演变规律，但由于实测水深资料获取较为困难，因而利用遥感来反演水深是一个重要的选择，为此，本文在黄河口海现代黄河三角洲冲淤演变规律与遥感应用研究端走取两个试验区进行了多光谱遥感水深反演试验，试验结果表明，在极高泥沙浓度、较强水动力条件的黄河口海域，用多光谱遥感反演水深是可行的。
Due to the superior multiresolution analytical characteristics of wavelet transform in time and frequency domains and the color enhancement effect of ihs transform for multispectral images , image fusion algorithms based on ihs and wavelet transform have become the main stream in multispectral remote sensing image fusion 由于小波变换在时频域卓越的多分辨率分析特性和ihs变换对多谱图像的彩色增强作用,基于ihs和小波变换的图像融合算法已经成为目前多光谱遥感图像融合技术的主流。
